Validasi dari Spektrofotometri UV-Vis dan Kandungan Total Flavonoid Ekstrak Etanol dari Akar Alang-Alang (Imperata cylindrica) dan Daun Pegagan (Centella asiatica) Anita Puspa Widiyana

2021 ◽  
Vol 3 (2) ◽  
pp. 126-136
Author(s):  
Anita Puspa Widiyana ◽  
Keyword(s):  
Chemical Constituents ◽  
Centella Asiatica ◽  
Ethanol Extract ◽  
Chemical Compounds ◽  
Imperata Cylindrica ◽  
Total Flavonoid ◽  
Analysis Method ◽  
Flavonoid Content ◽  
Validation Testing

Validation as a quality control for the content of chemical compounds from natural ingredients. One of the chemical constituents is the flavonoids which are found in the Imperatacylindrica roots and Centella asiatica leaves. This study aims to ensure the analysis method meets the requirements and determines the levels of flavonoids. The research stages included extraction, validation and determination of total flavonoid. Extraction was carried out by immersing dry simplicia in 96% ethanol solvent for 3x24 hours. The solvent is evaporated using a rotary evaporator until a thick extract is formed. Validation testing includes linearity, accuracy, precision, LOD and LOQ. Determinationof the total flavonoid was carried out by measuring the absorption at a maximum wavelength of 428.2 nm. The validation results includethe correlation coefficient (R) of 0.998, precision % RSD <2 %, %accuracy 99,53-97,98%, LOD 3.02ppm and LOQ 9.15 ppm. The total flavonoid of the ethanol extract of Imperata cylindrica roots was 36.39 ± 0.08 mg/g QE and Centella asiatica leaves was 102.10 ± 0.08 mg/g QE. The conclusion is that the method used met the validation requirements and the total flavonoid content of the ethanol extract of Centella asiatica leaves was higher than Imperata cylindrica roots

scholarly journals Microscopic Identification and Determination of Total Flavonoid Content of Moringa Leaves Extract and Ethyl Acetate Fraction (Moringa oleifera L.)

2022 ◽  
Vol 1 ◽  
pp. 66
Author(s):  
Annisa Fatmawati ◽  
Depita Sucianingsih ◽  
Riza Kurniawati ◽  
Muhammad Abdurrahman
Keyword(s):  
Ethyl Acetate ◽  
Moringa Oleifera ◽  
Ethanol Extract ◽  
Ethyl Acetate Fraction ◽  
Total Flavonoid ◽  
Total Flavonoid Content ◽  
Phytochemical Screening ◽  
Flavonoid Content ◽  
Microscopic Identification

This research was conducted to identify simplicia microscopically, phytochemical screening and determination of total flavonoid content of extract and ethyl acetate fraction from Moringa (Moringa oleifera L.) leaves using UV-Visible Spectrophotometry method. The experimental design used in this study was to perform microscopic identification of Moringa leaf powder simplicia, make 96% and 70% ethanol extract and ethyl acetate fraction of Moringa leaves from 70% ethanol extract, then carry out phytochemical screening and determination of total flavonoid content with quercetin standards. Phytochemical screening on the ethyl acetate fraction of Moringa leaves included tests for the content of flavonoids, saponins, tannins and alkaloids. The results of microscopic identification of Moringa leaf simplicia showed the presence of calcium oxalate crystals in the form of rosettes, mesophyll and stomata. The result of determination of total flavonoid content in 96% ethanol extract was 16.69 ± 0.74% (w/w), 70% ethanol extract was 10.84 ± 0.49% (w/w), Moringa leaf ethyl acetate fraction 14 .45 ± 0.90% (w/w). The highest total flavonoid content was found in the 96% ethanol extract of Moringa leaves in accordance with the 2017 Indonesian Herbal Pharmacopoeia, that the thick extract of Moringa leaves containing no less than 6.30% (w/w) total flavonoids was calculated as quercetin.

scholarly journals Uji Total Flavonoid Pada Beberapa Tanaman Obat Tradisonal Di Desa Waitina Kecamatan Mangoli Timur Kabupaten Kepulauan Sula Provinsi Maluku Utara

Jurnal MIPA ◽  
2013 ◽  
Vol 2 (1) ◽  
pp. 50 ◽  
Author(s):  
Mirna Lumbessy ◽  
Jemmy Abidjulu ◽  
Jessy J. E. Paendong
Keyword(s):  
Medicinal Plants ◽  
Centella Asiatica ◽  
Cyperus Rotundus ◽  
Total Flavonoid ◽  
Total Flavonoid Content ◽  
Flavonoid Content ◽  
Cassia Alata ◽  
Traditional Medicinal Plants ◽  
Flavonoid Analysis

Penelitian ini bertujuan untuk menguji total kandungan flavonoid pada beberapa tanaman obat tradisional. Penentuan kandungan total flavonoid dilakukan dengan menggunakan metode etanol – HCl, sedangkan analisis flavonoid menggunakan Metode spektrofotometeyr UV-VIS . Hasil yang diperoleh menunjukan kandungan total flavonoid pada tanaman ketepeng cina (Cassia alata L) sebesar 26.8633 mg/mL , iler (Coleus scutellariodes L Benth) sebesar 14.425 mg/mL , rumput teki (Cyperus rotundus L) sebesar 6.505 mg/mL, pegagan (Centella asiatica) sebesar 3.816 mg/mL, rumput mutiara (Oldenlandia corymbosa) sebesar 2.686 mg/mL dan waru (Hibiscus tiliaceus L) sebesar 1.425 mg/mL. Kandungan total flavonoid tertinggi terdapat pada daun ketepeng sebesar 26.863 mg/mL, sedangkan kandungan flavonoid terendah terdapat pada daun waru sebesar 1.425 mg/mL. Analisis flavonoid dilakukan pada 𝜆 = 200 - 400 nm dan 𝜆maks = 205 nm. Hasil analisis flavonoid menunjukkan bahwa [A] daun iler panjang gelombang maksimum yaitu 205 nm dan (pita I) 300 nm dan (pita II) 250 nm dengan absorbansi 0.242 positif mengandung flavonol. [B] daun rumput mutiara panjang gelombang maksimum 205 nm dan dapat dilihat pada (pita I) 305 nm dan (pita II) 260 nm dengan absorbansi 0.023 positif mengandung flavonol. [C]) daun ketepeng panjang gelombang maksimum 205 nm dan dapat dilihat pada (pita I) 330 nm dan (pita II) 276 nm dengan absorbansi 0.167 positif mengandung flavonol. [D]) daun pegagan panjang gelombang maksmum 205 nm dan dapat dilihat pada (pita I) 310 nm dan (pita II) 265 nm dengan absorbansi 0.047 positif mengandung flavonol. (E) rumput teki hanya terdapat (I pita) yaitu 295 nm dengan absorbansi 0.029 positif mengandung flavon. (F) Begitupun dengan daun waru hanya terdapat (I pita) yaitu 290 nm dengan absorbansi 0.036 positif mengandung flavon. Dapat disimpulkan bahwa berdasarkan uji kualitatif tanaman iler, ketepeng, rumput mutiara, rumput teki dan pegagan mengandung flavonoid kecuali tanaman waru tidak terdeteksi kandungan flavonoidnya.This studyaims to examine the total flavonoid contentin some traditional medicinal plants. Determination of total flavonoid content swere determined using ethanol-HCl, where as flavonoid analysis was analysed by spectrophotometry UV-VIS.The results showed the total flavonoid contentin Ketepeng China plant (Cassia alataL.) was 26.863 mg/ml, Iler plant (Coleus scutellariodes L. Benth) was 14.2464 mg/ml, nut-grass (Cyperus rotundus L.) was 6.505 mg/ml; Pegagan (Centella asiatica) was 3.816 mg/ml; pearl grass (Oldenlandia corymbosa) was 2.686 mg/ml, and Waru (Hibiscus tiliaceus L.) was 1.425 mg/ml. The highest total flavonoid was found in ketepeng(26.8633mg/ml), whereas the lowest was found in waru (1.4246 mg/ml). Flavonoid analysis was performed using a spectrometer with a wavelength (λ) of 200-400 nm, with λmax = 205 nm. Flavonoid analysis using a spectrophotometer, amon others showed that: (1) The maximum wavelength of Iler leaf was 205 nm and can be see non the Band I 300 nm and Band II 250 nm, with 0.242 absorbance. This indicates that this isolate was positive for flavonols; (2) Maximum wavelength of pearl leaf was 205 nm and can be see non the Band I 305 nm and Band II 260 nm, with 0.023 absorbance. This indicates that this isolate was positive for flavonols; (3) Maximum wavelength of ketepeng leaf was 205 nm and can be see non the Band I 330 nm and Band II 276 nm, with 0.167 absorbance. This indicates that this isolate was positive for flavonols; (4) Maximum wavelength of pegagan leaf was 205 nm and can be see non the Band I 310 nm and Band II 265 nm, with 0.047 absorbance. This indicates that this isolate was positive for flavonols; (5) nut-grass had only 1 band, namely 295 nm with absorbance 0.029. This indcates that this isolate was positive for flavons; (6) waru leaf had also only 1 band, namely 290 nm with absorbance 0.036. This this isolate was positive for flavons.

Study on Changes of Total Flavonoid Content in Suaeda salsa in Different Months of Growing Season

2014 ◽  
Vol 926-930 ◽  
pp. 1028-1031
Author(s):  
Wei Fang Zhong ◽  
Yue Hong Wang ◽  
Hong Ying Liu ◽  
Jin Hua Feng
Keyword(s):  
Theoretical Basis ◽  
Growing Season ◽  
Total Flavonoid ◽  
Suaeda Salsa ◽  
Uv Spectrophotometry ◽  
Total Flavonoid Content ◽  
Flavonoid Content ◽  
Significant Difference

Objective To investigate the changes of total flavonoid content of Suaeda salsa in different months of growing season, from May to November. Methods UV spectrophotometry was used for determination of the total flavonoid. Results The content of total flavonoid in Suaeda salsa was highest in September (67.75 mg·g-1) and was lowest in May (11.4 mg·g-1).The content was found to increase from May to September, and to decrease from September to November. Conclusion There is significant difference between total flavonoid content in Suaeda salsa from different months, which can be used to provide theoretical basis for harvesting and processing of Suaeda salsa.

Validation of Spectrophotometric Methods for the Determination of Total Polyphenol and Total Flavonoid Content

2017 ◽  
Vol 100 (6) ◽  
pp. 1795-1803 ◽  
Author(s):  
Petra Matić ◽  
Marija Sabljić ◽  
Lidija Jakobek
Keyword(s):  
Total Flavonoid ◽  
Chlorogenic Acids ◽  
Flavonoid Content ◽  
Polyphenol Content ◽  
Validation Process ◽  
Total Polyphenol ◽  
Spectrophotometric Methods ◽  
Calibration Curves ◽  
Validation Parameters

Abstract The aim of this study was to validate spectrophotometric methods for the measurement of total polyphenol (TP; via the Folin–Ciocalteu method) and total flavonoid (TF) content [via the aluminum chloride (AlCl3) method]. Validation parameters of these methods were determined, including linearity, sensitivity, precision (intra-assay and intermediate), accuracy, LOD, and LOQ. For the validation process, groups of polyphenol standards were used, including phenolic acids (gallic, p-coumaric, caffeic, and chlorogenic acids), flavan-3-ols [(+)-catechin and procyanidins B1 and B2], flavonols (quercetin and quercetin-3-rutinoside), and dihydrochalcones (phloretin and phloretin-2-glucoside). Obtained validation parameters were within acceptable ranges with high determination coefficients, reasonably low LODs and LOQs, and high slopes in the calibration curves for both methods, except for phloretin and phloretin-2-glucoside, for which there were low slopes in the calibration curves for the AlCl3 method. To evaluate differences in polyphenol content, the validated spectrophotometric methods were used to determine TP and TF content in wines (Plavac, Graševina, and Vranac) and juices (blueberry, strawberry, and blackcurrant juice) according to the polyphenol calibration curves. Polyphenol contents were different for both methods in all wines and juices.

scholarly journals Antimicrobial, Thrombolytic, Membrane Stabilizing Activities and Total Flavonoid Content of Various Partitionates of Aerial Parts of Eclipta alba (L.) Hassk

2016 ◽  
Vol 14 (2) ◽  
pp. 207-213 ◽  
Author(s):  
Jalal Uddin ◽  
Azima Sultana Julie ◽  
Md Haider Ali ◽  
Md Nurul Islam ◽  
Shah Alam Khan ◽  
...  
Keyword(s):  
Ethanolic Extract ◽  
Ethanol Extract ◽  
Maximum Activity ◽  
Total Flavonoid ◽  
Hypotonic Solution ◽  
Total Flavonoid Content ◽  
Flavonoid Content ◽  
Eclipta Alba ◽  
Microbial Infections ◽  
History Of

Eclipta alba is a medicinal herb belonging to the family of Asteraceae. Locally it is known as Kalokeshi and has a history of ethno-medicinal properties. The crude ethanolic extract of E. alba leaves was partitioned successively by solvents of different polarities. The crude extract along with different partitionates was evaluated for their possible antimicrobial, thrombolytic and membrane stabilizing activities. In this study, n-hexane soluble fraction (HXSF) showed 55.56% maximum activity against thrombosis in comparison with streptokinase (SK) 62.67%. For hypotonic solution- and heat-induced conditions, the n-hexane soluble fractionate (67.35 ± 0.50%) significantly inhibited the haemolysis of HRBCs by 67.35 ± 0.50% and 62.12 ± 0.69%, respectively as compared to the standard acetyl salicylic acid (77.91 ± 0.29%). The ethanol extract of the plant showed higher inhibitory action against Staphylococcus aureus, Bacillus subtilis, Proteus mirabilis and Pseudomonas fluroescens. The total flavonoid content was quite significant in ethanolic extract (142.17 ± 0.15 mg/g). Hence, the results of the present study revealed that the leaves of this traditional medicinal plant are a remedy for thrombosis, red blood cell membrane stabilization and microbial infections against some human pathogens.Dhaka Univ. J. Pharm. Sci. 14(2): 207-213, 2015 (December)

scholarly journals LC-ESI/MS and GC-MS Methanol Extract Analysis, Phytochemical and Antimicrobial Activity Studies of Centella asiatica

2020 ◽  
pp. 32-51
Author(s):  
Daniel A. Ondeko ◽  
Bernard F. Juma ◽  
Lilechi D. Baraza ◽  
Peter K. Nyongesa
Keyword(s):  
Chemical Constituents ◽  
Centella Asiatica ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Phytochemical Screening ◽  
Disc Diffusion Method ◽  
Leaf Extracts ◽  
Methanolic Extracts ◽  
Antibacterial And Antifungal

Aims: To determine chemical constituents of the Leaf extracts of Centella asiatica using the LC-MS and GC-MS and their antimicrobial activities. Study Design: Structural determination of compounds from the leaf extracts was done using GC-MS and LC-MS analysis. The antimicrobial properties of the extracts were done using disc diffusion method. Place and Duration of Study:  Pure and Applied Chemistry Department, Masinde Muliro University of Science and Technology, Kenya: Between 2016-2019. Methodology: Plant materials of C. asiatica were sequentially extracted separately based on the polarity viz., hexane, ethyl acetate and methanol. Determination of chemical constituents was done using LC-MS and GC-MS analysis and phytochemical screening. The extracts were assayed against Staphylococcus aureus, Klebsiella pneumonia, Escherichia coli and Candida albicans. Standard antimicrobials viz. ampicillin and Nystatin were used as the control. Disc diffusion method was used and zones of inhibition, after respective incubation periods, were used to quantify antibacterial and antifungal activity. Results: Phytochemical screening of the hexane, ethyl acetate and methanolic extracts showed that terpenoids, flavonoids, saponins, alkaloids, steroids, amino acids and proteins, reducing sugars and carbohydrates were present. LC-MS and GC-MS analyses of the methanolic extracts identified 22 and 33 compounds, respectively, by use of the national institute of standards and technology (NIST) library. The extracts showed appreciable activity against common microbes tested. Conclusion: This study forms the basis for the biological characterization and significance of the compounds identified in the leaf and stem extracts of C. asiatica. These compounds are known to possess antibacterial and antifungal activities that could be established as potential candidates for future drug development. However, these extracts, need to be subjected to further chromatographic procedures to isolate the identified compounds and their bioactivities determined.

scholarly journals DETERMINATION OF THE QUALITY CHARACTERISTICS OF NATURALLY GROWING HAWTHORN IN SUŞEHRI

2020 ◽  
Vol 19 (1) ◽  
pp. 61-70
Author(s):  
Erdal Ağlar ◽  
Ahmet Sümbül ◽  
Orhan Karakaya ◽  
Burhan Ozturk
Keyword(s):  
Antioxidant Activity ◽  
Fruit Weight ◽  
Total Flavonoid ◽  
Total Phenolic ◽  
Total Flavonoid Content ◽  
Flavonoid Content ◽  
Fruit Characteristics ◽  
Ph Values ◽  
Biochemical Measurements

The study was conducted in 2017 in the district of Sivas. In the study, 20 genotypes, which are considered to be different from each other, taking into account the fruit characteristics such as color and size and shape, were determined from the hawthorns that were naturally grown in the flora of Suşheri. At harvest time, the fruit, which would be adequate for pomological and biochemical measurements and analyzes, was harvested. According to the results of the measurements and analyzes in the study, fruit weight was found to vary between 0.68 g and 6.35 g, fruit width was between 10.52 and 29.48 mm and fruit length was between 11.40 and 20.67 mm. The highest firmness values were recorded with the genotype (G) 20 genotype, while the G4 had the lowest values in terms of the firmness values of the fruit flesh. While there are no significant differences between the pH values of the genotypes, the differences between the genotypes in terms of SSC, TA and vitamin C contents are quite significant. It has been found that there are significant differences between the genotypes in terms of total phenolic, total flavonoid and antioxidant activity. The total phenolic content ranged from 218.8 (G17) to 605.8 (G5 and G8) mg GAE kg–1 f.w., while the lowest total flavonoid content was 21.58 (G 17) and the highest total flavonoid content was 67.75 (G9) mg GAE kg–1 f.w. When the antioxidant activity was evaluated, the DPPH values were 1.08 (G17) – 15.43 (14) mmol TE kg–1 f.w., the FRAP values were 15.43 (G16) – 47.23 (G8) mmol TE kg–1 f.w. respectively.

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